Solution:

We override the build-zip target. This target generates the .zip distribution artifact, which also serves a input for the installer.

The modified script:

The original build-zip target (netbeans 8.0) is found in the harness directory of your Netbeans installation. We place an adapted copy into the build.xml of your application root directory, thus overriding the behavior of the original target. The red lines were added to prevent adding localization for Russian, Chinese and Japanese.